It wasn't terrible, it was entertaining but I don't think I laughed once throughout. I'm generally a Deadpool mega fan, I love the first two films, and I own probably 90% of Deadpool comics, but this felt like a bit of a miss. An easy gateway for DP into the MCU, instead of focusing on what makes the character fun and unique.
The best DP comic team ups have been with Cable, continuing that felt like a tap-in. Going with the multiverse storylines instead was a bit trite IMO.
Why did they replace the awesome Juggernaut from DP2 with a shit one?